How severe is CVE-2024-5294?

CVE-2024-5294 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-5294 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5294?

CVE-2024-5294 affects Dlink Dir-3040 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-5294?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-5294 have an EU (EUVD) identifier?

Yes. CVE-2024-5294 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46530.

When was CVE-2024-5294 published?

CVE-2024-5294 was published on 2024-05-23 and last updated on 2026-06-17.

CVE-2024-5294

CVE-2024-5294 is a medium-severity vulnerability in Dlink Dir-3040 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46530
Weakness: CWE-401
Affected product: Dlink Dir-3040 Firmware
Published: 2024-05-23
Last modified: 2026-06-17

Description

D-Link DIR-3040 prog.cgi websSecurityHandler Memory Leak Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of D-Link DIR-3040 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the prog.cgi program, which handles HNAP requests made to the lighttpd webserver listening on ports 80 and 443. The issue results from the lack of proper memory management when processing HTTP cookie values. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. . Was ZDI-CAN-21668.

Frequently asked questions

What is CVE-2024-5294?: D-Link DIR-3040 prog.cgi websSecurityHandler Memory Leak Denial-of-Service Vulnerability. This vulnerability allows network-adjacent attackers to create a denial-of-service condition on affected installations of D-Link DIR-3040 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the prog.cgi program, which handles HNAP requests made to the lighttpd webserver listening on ports 80 and 443. The issue results from the lack of proper memory management when processing HTTP cookie values. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. . Was ZDI-CAN-21668.
How severe is CVE-2024-5294?: CVE-2024-5294 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-5294 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5294?: CVE-2024-5294 affects Dlink Dir-3040 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-5294?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-5294 have an EU (EUVD) identifier?: Yes. CVE-2024-5294 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46530.
When was CVE-2024-5294 published?: CVE-2024-5294 was published on 2024-05-23 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-24-445/

Affected products (1)

cpe:2.3:o:dlink:dir-3040_firmware:120b03:*:*:*:*:*:*:*

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